{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "We believe these two cases represent a newly described and catastrophic metabolic - endocrine failure in the Kearns - Sayre syndrome ."}
{"Disease": ["metabolic - endocrine failure", "Kearns - Sayre syndrome"], "Chemical": []}